Sebastes ruberrimus, commonly known as the yelloweye rockfish, is a large, long-lived marine fish in the family Sebastidae. It is native to the eastern Pacific Ocean, ranging from the Aleutian Islands in Alaska to northern Baja California, Mexico. The genus name Sebastes is derived from the Greek word sebastos, meaning "magnificent" or "venerable," while the species epithet ruberrimus is the Latin superlative for "very red." Historically, this species has been one of the most commercially and recreationally significant bottom-dwelling fish along the North American west coast; however, due to its extremely slow growth rate and late maturity, populations have faced severe pressure, leading to strict conservation management and recovery programs in many jurisdictions.

Physically, the yelloweye rockfish is a robust, bottom-dwelling fish that can reach lengths of up to 90 centimeters and live for well over 100 years. It is easily recognized by its vibrant orange-to-red coloration, which often fades to a lighter, mottled orange or yellow on the sides, and its distinct, bright yellow eyes—hence its common name. Like other rockfish, it has a spiny, armored head, large pectoral fins, and sharp, venom-grooved spines along its dorsal, anal, and pelvic fins that require careful handling. They typically inhabit deep, rocky reefs, crevices, and boulder fields at depths ranging from 25 to 450 meters, where they exhibit extreme site fidelity, rarely moving far from their established home range.

The yelloweye rockfish is highly esteemed for its culinary qualities, featuring firm, lean, white, and flaky flesh with a mild, sweet flavor profile. In coastal Pacific Northwest and Alaskan gastronomy, it is prepared in various ways, including pan-searing, steaming, or poaching, as its delicate texture holds up well to these cooking methods. Historically, it served as a reliable, high-protein staple for coastal Indigenous communities. Because the species is a managed "slow-growth" resource, wild-caught yelloweye is increasingly rare and strictly regulated, often being replaced in modern commercial markets by more abundant, fast-growing rockfish species or sustainable aquaculture alternatives.

Nutritionally, Sebastes ruberrimus is an excellent source of high-quality animal protein, containing all essential amino acids required for human health. It is particularly valued for its low fat content and its role as a concentrated source of essential minerals, including selenium, phosphorus, and potassium. The meat contains beneficial long-chain omega-3 polyunsaturated fatty acids, primarily eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which are critical for cardiovascular and neurological health. The skin and cartilaginous structures are also rich in collagen, which is increasingly being studied for its potential in functional health supplements.